Where does “Loki” come from?

Loki comes from Old Norse Loki, of unknown origin and meaning.

Ancestry of “Loki”, step by step

Step	Language	Word	Meaning
1	Old Norse	Loki	—
2	Old Norse	lok	lock, lid; weed, unwanted plant
3	Proto-Germanic	lūkaną	to close, to shut; Alternative form of *leukaną
4	Proto-Indo-European	lewǵ-	to break, tear; to break, shatter

Loki — Etymology, Origin & Word History | Etymology Explorer